IF EXISTS (SELECT *
           FROM INFORMATION_SCHEMA.ROUTINES
           WHERE ROUTINE_NAME='pGetReturnProductDetailByReturnProductId'
           AND ROUTINE_SCHEMA='dbo'
           AND ROUTINE_TYPE='PROCEDURE'
          )
          DROP PROCEDURE dbo.pGetReturnProductDetailByReturnProductId
GO

CREATE PROC dbo.pGetReturnProductDetailByReturnProductId
  @vintReturnProductId INT
AS
/*@@*_____________________________________________________________________

  

_____________________________________________________________________*@@*/

/*______________________ CONSTANT DECLARATIONS _________________________*/

  DECLARE
    @cstrThisProc              NVARCHAR(128),
    @cintErrGeneral            INT

  SET @cstrThisProc            = N'pGetReturnProductDetailByReturnProductId'
  SET @cintErrGeneral          = 50000  -- General error. Used when an
                                        -- error has occurred and no other
                                        -- specific error condition is
                                        -- assigned.

/*______________________ VARIABLE DECLARATIONS _________________________*/

  DECLARE
    @intErrNo       INT,
    @strErrMsg      NVARCHAR(400),
    @intReturn      INT

/*_______________________________ INIT _________________________________*/

  -- Setting NOCOUNT ON prevents additional recordsets with the
  -- "number of records affected" from being returned, which is not
  -- handled the same by all providers, such as for OLEDB vs. ODBC.
  SET NOCOUNT ON

/*________________________ VALIDATE PARAMETERS _________________________*/


/*_______________________________ MAIN _________________________________*/
	SELECT 
		ReturnProductDetail.Amount,
		Product.[Name],
		RowNumber = ROW_NUMBER() OVER(ORDER BY ReturnProductDetail.Id),
		BillDetail.BillId,
		Bill.SaleTime,
		ReturnProductDetail.SalePrice,
		TotalPrice = ISNULL(ReturnProductDetail.Amount * ReturnProductDetail.SalePrice, 0)
	FROM ReturnProductDetail
		
	INNER JOIN Product
		ON ReturnProductDetail.ProductId = Product.Id
		
	LEFT JOIN BillDetail
		ON ReturnProductDetail.BillDetailId = BillDetail.Id
		
	LEFT JOIN Bill
		ON BillDetail.BillId = Bill.Id
		
	WHERE ReturnProductId = @vintReturnProductId


  -- Return value 0 indicates success
  SET @intReturn = 0

lblExit:

  RETURN @intReturn

/*___________________________ ERROR HANDLER ____________________________*/
lblError:
  -- An error has occurred.  On entering this section @intErrNo should
  -- already hold the error number

  -- By default, if there are any open transactions then roll them back
  IF (@@TRANCOUNT > 0) BEGIN
    ROLLBACK TRAN

  END

  -- If return value has not been explicitly set, then use the error
  -- number as return value to signify failure
  IF ((@intReturn IS NULL) OR (@intReturn = 0)) BEGIN
    SET @intReturn = @intErrNo

  END

 GOTO lblExit


